Home / 1,325,497.60-1,988,246.40-328,225.60

Finding the Fourth Proportional to 1,325,497.60, 1,988,246.40 and 328,225.60

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Solution

The fourth proportional to 1,325,497.60, 1,988,246.40 and 328,225.60 is: 492,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,497.60 : 1,988,246.40 = 328,225.60 : x
  2. Step 2: Convert to fraction form
    1,325,497.60/1,988,246.40 = 328,225.60/x
  3. Step 3: Cross multiply
    1,325,497.60x = 1,988,246.40 × 328,225.60
  4. Step 4: Simplify right side
    1,325,497.60x = 652,593,367,587.84
  5. Step 5: Solve for x
    x = 652,593,367,587.84/1,325,497.60
  6. Step 6: Final answer
    x = 492,338.40

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Half scale
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Double scale
Find fourth proportional to 1,325,498.60, 1,988,247.90 and 328,226.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.